CN201048107Y - Pneumatic switch - Google Patents
Pneumatic switch Download PDFInfo
- Publication number
- CN201048107Y CN201048107Y CNU2007200378896U CN200720037889U CN201048107Y CN 201048107 Y CN201048107 Y CN 201048107Y CN U2007200378896 U CNU2007200378896 U CN U2007200378896U CN 200720037889 U CN200720037889 U CN 200720037889U CN 201048107 Y CN201048107 Y CN 201048107Y
- Authority
- CN
- China
- Prior art keywords
- jettron
- conductive
- flexible sheet
- hole
- conductive contact
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a pneumatic switch, which comprises an upper cover, a lower cover, an elastic membrane, a conductive contact pin, and a conductive wafer. The upper cover is provided with a through hole, which is closed by screwing an adjustable bolt matching with the inner thread of the adjustable bolt into. The contact face of the upper surface and the lower cover presses tightly the elastic membrane, the elastic membrane separates a pressure switch into an upper and a lower cavities. A pressure spring is arranged between the conductive wafer and the adjustable bolt. One end of the pressure spring props against the conductive wafer, and the other end props against the adjustable bolt. The conductive contact pin is vertical to the conductive wafer and matches with the conductive wafer mutually in a clearance. An airproof ring is arranged between the adjustable bolt and the through hole to increase the airtightness, and the elastic membrane is provided with an annular step.
Description
Technical field
The utility model relates to a kind of jettron, particularly strengthens the jettron of sealing effectiveness with sealing ring.
Background technology
Existing and the similar jettron of the utility model, set screw and jettron loam cake are direct with being threaded, set screw and the rigid plastics manufacturing of jettron loam cake, so sealing effectiveness is undesirable.In addition known jettron flexible sheet be straight, when jettron carried out switch motion, flexible sheet exists the pressure between upper and lower covers induction answered delay phenomenon, the pressure action of jettron is insensitive.
The utility model content
The utility model provides a kind of jettron in order to overcome above defective, and its sealing effectiveness is better, and the pressure action is sensitiveer.
In order to realize above purpose, the utility model is by the following technical solutions: a kind of jettron, comprise loam cake, lower cover, flexible sheet, conductive pin, conductive contact blade, on be covered with through hole, described through hole is used with the suitable set screw of its internal thread and is screwed in sealing, the contact-making surface of loam cake and lower cover compresses flexible sheet, described flexible sheet is divided into two cavitys up and down with jettron, is provided with stage clip between conductive contact blade and the set screw, and described stage clip one end props up conducting strip, the other end props up set screw, and conductive pin is perpendicular to conductive contact blade and mutual matched in clearance.
Of the present utility model being characterised in that: be provided with sealing ring between set screw and the through hole to increase sealing, described flexible sheet is provided with ring-shaped step.
The utility model can further be made as: described sealing ring is that elastomeric material is made, and described ring-shaped step is to loam cake direction projection.
The beneficial effects of the utility model are: adopt the sealing ring sealing, strengthened the sealing of jettron air cavity, flexible sheet is provided with annular earthen platform, has strengthened the ductility of diaphragm, makes the pressure action of jettron sensitive more.
Further describe below in conjunction with accompanying drawing and specific embodiment
Description of drawings
Fig. 1 is the structure cutaway view of the utility model specific embodiment
Fig. 2 is the A-A cutaway view of Fig. 1
Specific embodiment
As shown in Figure 1: a kind of jettron, comprise loam cake 4, lower cover 1, flexible sheet 2, conductive pin 6, conductive contact blade 3, loam cake 4 is provided with through hole, the set screw 7 screw-in sealings suitable of described through hole with its internal thread, the contact-making surface of loam cake 4 and lower cover 1 compresses flexible sheet 2, and described flexible sheet 2 is divided into two cavitys up and down with jettron, be provided with stage clip 8 between conductive contact blade 3 and the set screw 7, described stage clip 8 one ends prop up conductive contact blade 3, and the other end props up set screw 7, and conductive pin 6 is perpendicular to conductive contact blade 3 and mutual matched in clearance.Conductive pin 6 is connected in external circuit.Be provided with sealing ring 5 between set screw 7 and the loam cake 4, described sealing ring 5 is made for rubber.Flexible sheet 2 is provided with annular boss, and described annular boss is to loam cake 4 projectioies.
The utility model has two kinds of working methods
Working method one: negative pressure section pore is connected with external device (ED), and lower cover 1 positive pressure side pore opens wide.When air-breathing, pressure reduce external device in the loam cake 4, form pressure difference up and down between the cavity to negative pressure section pore, flexible sheet 2 is under the cavity of resorption gas pressure, overcome on the elastic band moving conductive contact 3 of stage clip 8 and move, when conductive contact blade 3 when conductive pin 6 directly over being positioned at it contacts, circuit is connected.Remove external device and be applied to the getter action of negative pressure section, conductive contact blade 3 under stage clip 8 elastic force effects, break away from conductive pin 6 contact the circuit disconnection.
Working method two: positive pressure side pore is connected with external device (ED), and loam cake 4 positive pressure side pores open wide.External device is during to the air inlet of malleation section pore, and pressure raises in the lower cover 1, forms pressure difference up and down between the cavity, flexible sheet 2 is under the cavity of resorption gas pressure, overcome on the elastic band moving conductive contact 3 of stage clip 8 and move, when conductive contact blade 3 when conductive pin 6 directly over being positioned at it contacts, circuit is connected.Remove external device and be applied to the air inlet effect of malleation section, conductive contact blade 3 under stage clip 8 elastic force effects, break away from conductive pin 6 contact the circuit disconnection.
Claims (3)
1. jettron, comprise loam cake, lower cover, flexible sheet, conductive pin, conductive contact blade, on be covered with through hole, the set screw screw-in sealing suitable of described through hole with its internal thread, the contact-making surface of loam cake and lower cover compresses flexible sheet, and described flexible sheet is divided into two cavitys up and down with jettron, be provided with stage clip between conductive contact blade and the set screw, conductive contact blade and conductive pin matched in clearance is characterized in that: be provided with sealing ring between described set screw and the through hole to increase sealing, described flexible sheet is provided with ring-shaped step.
2. jettron according to claim 1 is characterized in that: described sealing ring is that elastomeric material is made.
3. jettron according to claim 1 and 2 is characterized in that: described ring-shaped step is to loam cake direction projection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200378896U CN201048107Y (en) | 2007-05-24 | 2007-05-24 | Pneumatic switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200378896U CN201048107Y (en) | 2007-05-24 | 2007-05-24 | Pneumatic switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201048107Y true CN201048107Y (en) | 2008-04-16 |
Family
ID=39300699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200378896U Expired - Fee Related CN201048107Y (en) | 2007-05-24 | 2007-05-24 | Pneumatic switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201048107Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011026416A1 (en) * | 2009-09-04 | 2011-03-10 | 嘉兴亚特园林机械研究所 | Pressure sensor of intelligent mower |
| CN101996818A (en) * | 2009-08-18 | 2011-03-30 | 伯彻雷格梅特股份公司 | Pneumatic switch, device and method for manufacturing the pneumatic switch |
-
2007
- 2007-05-24 CN CNU2007200378896U patent/CN201048107Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101996818A (en) * | 2009-08-18 | 2011-03-30 | 伯彻雷格梅特股份公司 | Pneumatic switch, device and method for manufacturing the pneumatic switch |
| CN101996818B (en) * | 2009-08-18 | 2014-05-28 | 伯彻雷格梅特股份公司 | Pneumatic switch, device and method for manufacturing the pneumatic switch |
| WO2011026416A1 (en) * | 2009-09-04 | 2011-03-10 | 嘉兴亚特园林机械研究所 | Pressure sensor of intelligent mower |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080416 Termination date: 20130524 |